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Contrastive Self-supervised Learning (CSL) is a practical solution that learns meaningful visual representations from massive data in an unsupervised approach. The ordinary CSL embeds the features extracted from neural networks onto…

计算机视觉与模式识别 · 计算机科学 2022-08-19 Shentong Mo , Zhun Sun , Chao Li

Text embedding models are designed for sentence-level applications like retrieval and semantic similarity, and are primarily evaluated on sentence-level benchmarks. Their behavior on isolated words is less understood. We show that simply…

计算与语言 · 计算机科学 2025-12-09 Rajeev Ranjan

Language models contain ranking-based knowledge and are powerful solvers of in-context ranking tasks. For instance, they may have parametric knowledge about the ordering of countries by size or may be able to rank product reviews by…

机器学习 · 计算机科学 2024-02-06 Niklas Stoehr , Pengxiang Cheng , Jing Wang , Daniel Preotiuc-Pietro , Rajarshi Bhowmik

Contrastive learning has gained popularity and pushes state-of-the-art performance across numerous large-scale benchmarks. In contrastive learning, the contrastive loss function plays a pivotal role in discerning similarities between…

计算机视觉与模式识别 · 计算机科学 2025-12-03 Haojin Deng , Yimin Yang

Semantic communication, as a revolutionary communication architecture, is considered a promising novel communication paradigm. Unlike traditional symbol-based error-free communication systems, semantic-based visual communication systems…

计算机视觉与模式识别 · 计算机科学 2024-07-11 Senran Fan , Zhicheng Bao , Chen Dong , Haotai Liang , Xiaodong Xu , Ping Zhang

Recent pre-trained language models (PLMs) achieved great success on many natural language processing tasks through learning linguistic features and contextualized sentence representation. Since attributes captured in stacked layers of PLMs…

计算与语言 · 计算机科学 2022-09-14 Dongsuk Oh , Yejin Kim , Hodong Lee , H. Howie Huang , Heuiseok Lim

Recently, speech separation (SS) task has achieved remarkable progress driven by deep learning technique. However, it is still challenging to separate target speech from noisy mixture, as the neural model is vulnerable to assign background…

声音 · 计算机科学 2024-01-09 Zizheng Zhang , Chen Chen , Hsin-Hung Chen , Xiang Liu , Yuchen Hu , Eng Siong Chng

Contextualized embeddings are the preferred tool for modeling Lexical Semantic Change (LSC). Current evaluations typically focus on a specific task known as Graded Change Detection (GCD). However, performance comparison across work are…

计算与语言 · 计算机科学 2024-10-31 Francesco Periti , Nina Tahmasebi

Semantic text similarity plays an important role in software engineering tasks in which engineers are requested to clarify the semantics of descriptive labels (e.g., business terms, table column names) that are often consists of too short…

计算与语言 · 计算机科学 2023-10-31 Toshihiro Takahashi , Takaaki Tateishi , Michiaki Tatsubori

Contrastive Learning (CL) performances as a rising approach to address the challenge of sparse and noisy recommendation data. Although having achieved promising results, most existing CL methods only perform either hand-crafted data or…

信息检索 · 计算机科学 2023-11-22 Xiuyuan Qin , Huanhuan Yuan , Pengpeng Zhao , Junhua Fang , Fuzhen Zhuang , Guanfeng Liu , Victor Sheng

End-to-end Speech Translation (E2E ST) aims to directly translate source speech into target text. Existing ST methods perform poorly when only extremely small speech-text data are available for training. We observe that an ST model's…

计算与语言 · 计算机科学 2023-07-10 Siqi Ouyang , Rong Ye , Lei Li

Recent breakthroughs in semi-supervised semantic segmentation have been developed through contrastive learning. In prevalent pixel-wise contrastive learning solutions, the model maps pixels to deterministic representations and regularizes…

计算机视觉与模式识别 · 计算机科学 2022-12-19 Haoyu Xie , Changqi Wang , Mingkai Zheng , Minjing Dong , Shan You , Chong Fu , Chang Xu

Attention-based sequence-to-sequence models for speech recognition jointly train an acoustic model, language model (LM), and alignment mechanism using a single neural network and require only parallel audio-text pairs. Thus, the language…

音频与语音处理 · 电气工程与系统科学 2019-02-20 Jinxi Guo , Tara N. Sainath , Ron J. Weiss

Recent works in self-supervised learning have advanced the state-of-the-art by relying on the contrastive learning paradigm, which learns representations by pushing positive pairs, or similar examples from the same class, closer together…

机器学习 · 计算机科学 2022-06-27 Jeff Z. HaoChen , Colin Wei , Adrien Gaidon , Tengyu Ma

This paper describes Difference-aware Deep continuous prompt for Contrastive Sentence Embeddings (D2CSE) that learns sentence embeddings. Compared to state-of-the-art approaches, D2CSE computes sentence vectors that are exceptional to…

计算与语言 · 计算机科学 2023-04-19 Hyunjae Lee

Contrastive learning has been frequently investigated to learn effective representations for text clustering tasks. While existing contrastive learning-based text clustering methods only focus on modeling instance-wise semantic similarity…

计算与语言 · 计算机科学 2024-08-27 Qian Yong , Chen Chen , Xiabing Zhou

The recommendation system plays a vital role in many areas, especially academic fields, to support researchers in submitting and increasing the acceptance of their work through the conference or journal selection process. This study…

信息检索 · 计算机科学 2022-05-13 Duc H. Le , Tram T. Doan , Son T. Huynh , Binh T. Nguyen

Contrastive learning has shown effectiveness in improving sequential recommendation models. However, existing methods still face challenges in generating high-quality contrastive pairs: they either rely on random perturbations that corrupt…

信息检索 · 计算机科学 2025-12-23 Ziqiang Cui , Yunpeng Weng , Xing Tang , Xiaokun Zhang , Shiwei Li , Peiyang Liu , Bowei He , Dugang Liu , Weihong Luo , Xiuqiang He , Chen Ma

Inferring the probability distribution of sentences or word sequences is a key process in natural language processing. While word-level language models (LMs) have been widely adopted for computing the joint probabilities of word sequences,…

计算与语言 · 计算机科学 2021-03-16 Heewoong Park , Sukhyun Cho , Jonghun Park

Machine Reading Comprehension with Unanswerable Questions is a difficult NLP task, challenged by the questions which can not be answered from passages. It is observed that subtle literal changes often make an answerable question…

计算与语言 · 计算机科学 2022-08-03 Yunjie Ji , Liangyu Chen , Chenxiao Dou , Baochang Ma , Xiangang Li